Tobacco-pipe.



G. G. RICKLY.

TOBACCO PIPE.

APPLICATION FILED AUG. 3, 1909.

Patented Sept. 2, 1913.

V a pipe that shall have ample draft that can.

PATENT OFFICE.

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J p Specification of Letters Patent. Application filed auguas, 190a. Berta! in. 510,976.

Patented Sept. 2, 1913.

To all whom it mayaoncem;

Be it known that I, GEORGE C. RIoKLr, a citizen of the United States, and a resident of Ottawa, in the county of Lasalle and State of Illinois, have invented certain new and useful Improvementsin TobaocoPipes, of which the following is a full, clear, and exact specification.

My invention is concerned with pipes for smoking tobacco, and is designed to produce readily be maintained without removing the V mouthpiece or resorting to the use of special cleaning tools, and which more especiallywill enable me to have a cool smoke of the entire contents of the pipe and without danger of its becoming clogged.

In carrying out my invention, I emplo a plurality of passages, preferably two, eit er of which alone would be too small for a free draft and would tend to clog, while both furnish an ample draft and neither of them is so large as to permit the tobacco to be drawn into it. I locate the upper passage at such an angle that if it should accidentally become clogged u it can be cleared out by a wooden toothpie or some similar article, inserted from the top of the bowl.

To illustrate my invention, I annex hereto a sheet of drawings, in which the same reference characters are used to designate identical parts in all the figures, of which,-

Figure 1 is a longitudinal section through the bowl and stem; and Fig. 2 is an end elevation. t

The bowl a and the stem 1) may, so far as the exterior is concerned, be of the customary construction, as wellas the mouthpiece 0, which fits into the main tapered passage d in the stem. The two passages e and f from the bowl into the main passa e d are, as shown, preferably of substantiailly the same area in cross-section, and neither of them is large enough to furnish as free a draft as desired, but both of them together furnish an abundant draft. Neither of them is large enough to permit the tobacco to be drawn through the passages into the stem and mouthpiece. I employ in connection with my present invention the valve g, which is shown and described in my prior Patent No. 574,495, and the lower passage f opens into the bottom of the bowl opposite to the valve. As shown, the upper passage 6 is set at an angle of, say, sixty degrees to the other passage f, and it will be noted that it extends at such an angle that a wooden toothpick or som similar article can be inserted from the top f'the bowl to clear the passage out, and the main passage 03 extends far enough in so as to produce the angle h in a positionto form a continuation, as it were, of the passage e. V

In the use of an ordinary pipe, such as ,would be represented by my pipe herein illustrated without the valve 9 and the passage e, it will be apparent that all the air drawn through the stem must pass throu h the burning tobacco in the bowl, with t e result that the tobacco burns too fast and the air is too hot to be drawn into the mouth with comfort. To overcome these difiiculties, I devised the novel apparatus shown in my Patent No. 574,495, which employs a valve of the general character of that shown at g in my present a plication, and having the same location an mode ofo ration. While the employment of this va ve overcame .the objections above noted by drawing some of th air through the valveig, and consequently less of it through the burning tobacco, it developed the difiiculty that the bottom of the bowl was kept so cool that the moisture or water formed by the burning of the tobacco condensed or was deso that the tobacco at the bottom was moistened enough to cause it to clog the opening 1, thus interfering with the smoking. To remedy this diflic'ulty, I have added the exsmoke and vaporized water is drawn, thus largely removing the tendency, which would at the bottom of the bowl and moisten the tobacco enough to sto the )assage f. When the tobacco burns be ow t e upper endof the passage 6, the heat is so close to the botcondense there, as it is too hot, and, as a bottom without the moisture being deposited so as to tend to clog either opening.

What I claim as new, and desire to secure by Letters Patent of the United States, is:

A pipe consisting of a bowl and stem having two simultaneously open passages leading from the bowl to the stem, the lower passage opening near the bottom of the bowl and the upper one near the center, the

otherwise exist, of the moisture to collect tom of the bowl that the moisture cannot.

posited in the bottom of the bowlsufiiciently tra passage 6, through which much of the result, I can smoke the pipe clear to the cross-sectional area of the passages being small enough to prevent the-tobacco from being drawn thereinto, While the combined area is large enough to give an ample draft, av valve-opening in the bowl at substantially the bottom thereof to permit some cool air to be drawn therethrough and mixed with the hot gaseous products of combustion, and a mouthpiece terminating short of the open- 

